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Low Earth orbit - Wikipedia
A low Earth orbit (LEO) is an orbit around Earth with a period of 128 minutes or less (making at least 11.25 orbits per day) and an eccentricity less than 0.25. [1]
Low Earth orbit (LEO) | Definition, Distance, & Facts | Britannica
Jan 30, 2025 · Low Earth orbit (LEO), region of space where satellites orbit closest to Earth’s surface. There is no official definition of this region, but it is usually considered to be between 160 and 1,600 km (about 100 and 1,000 miles) above Earth.
Low Earth Orbit Visualization | LeoLabs
A visualization of satellites, debris, and other objects tracked by LeoLabs in low earth orbit
What is low Earth orbit? | Space
May 30, 2022 · In very simple terms, low Earth orbit (LEO) is exactly what it sounds like: An orbit around the Earth with an altitude that lies towards the lower end of the range of possible orbits.
What Is Low Earth Orbit? A Basic Explainer - ExtremeTech
Jan 12, 2025 · An object is said to be in low Earth orbit if it completes a revolution every 128 minutes or less. A 128-minute orbit, according to Kepler's third law, works out to a semi-major axis of 8,413...
What is Low Earth Orbit? - Universe Today
Jan 6, 2017 · For over 70 years, Low-Earth Orbit has been the playground of human space capability. On occasion, we have ventured beyond the playground and farther out into the Solar System (and even...
Commercial Space Frequently Asked Questions - NASA
Apr 7, 2024 · What is LEO (low Earth orbit)? Low Earth orbit (LEO) encompasses Earth-centered orbits with an altitude of 1,200 miles (2,000 km) or less. This orbit is considered near enough to Earth for convenient transportation, communication, observation, and resupply.
ESA - Types of orbits - European Space Agency
Mar 30, 2020 · A low Earth orbit (LEO) is, as the name suggests, an orbit that is relatively close to Earth’s surface. LEO is considered to be under altitudes of 2000 km, this upper limit a consequence of the Van Allen belts above and the harsh environment they create.
Popular Orbits 101 - Aerospace Security
Nov 30, 2017 · This orbital regime is called low Earth orbit, or LEO, due to the satellites’ relative closeness to the Earth. Satellites in LEO typically take between 90 minutes and 2 hours to complete one full orbit around the Earth.
Low Earth Orbit (LEO) - Definition & Detailed Explanation
Apr 6, 2024 · Low Earth Orbit (LEO) is a specific region of space that is relatively close to Earth, typically ranging from 160 kilometers (100 miles) to 2,000 kilometers (1,200 miles) above the Earth’s surface. Satellites placed in LEO orbit the Earth at high speeds, completing an orbit in approximately 90 minutes.
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